Which is incorrect about deep-sea organisms?
A. Some prokaryotes are photosynthetic there.
B. Some prokaryotes live symbiotically within the tissues of heterotrophs that live there.
C. Some prokaryotes extract energy from hydrogen sulfide.
D. Some heterotrophic organisms obtain energy from debris that falls from above.
Answer: A
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Soil particles are classified on the basis of
A) age. B) color. C) water content. D) size.
Where does photosynthesis occur?
What will be an ideal response?
This type of lipid is found in pigments such as chlorophyll, in the visual pigment retinal, and in rubber:
A. terpene. B. prostaglandin. C. wax. D. steroid. E. phospholipid.
The number of growing seasons that a plant survives is determined by two flower-inducing genes, LEAFY and Apetala 1. If scientists were to block these genes resulting in an annual plant to survive multiple growing seasons, how would this plant now be described?
A. perennial B. eudicot C. monocot D. vegetative